Cappello, T. (2017). Design and Characterization of Power Converters and Amplifiers for Supply-Modulation based Transmitter Architectures.
Cappello, T., Barton, T. W., Florian, C., Litchfield, M., & Popovic, Z. (2017). Multilevel supply-modulated Chireix outphasing with continuous input modulation. IEEE Transactions on Microwave Theory and Techniques, 65(12), 5231–5243.
Cappello, T., Duh, A., Barton, T. W., & Popovic, Z. (2019). A dual-band dual-output power amplifier for carrier aggregation. IEEE Transactions on Microwave Theory and Techniques, 67(7), 3134–3146.
Cappello, T., Florian, C., Barton, T. W., Litchfield, M., & Popovic, Z. (2017). Multi-level supply-modulated Chireix outphasing for LTE signals. 2017 IEEE MTT-S International Microwave Symposium (IMS), 1846–1849.
Cappello, T., Florian, C., Niessen, D., Paganelli, R. P., Schafer, S., & Popovic, Z. (2019). Efficient X-band transmitter with integrated GaN power amplifier and supply modulator. IEEE Transactions on Microwave Theory and Techniques, 67(4), 1601–1614.
Cappello, T., Florian, C., & Popovic, Z. (2022). Single-supply multi-level envelope tracker for rf power amplifier efficiency enhancement.
Cappello, T., Florian, C., Santarelli, A., & Popovic, Z. (2019). Linearization of a 500-W L-band GaN Doherty power amplifier by dual-pulse trap characterization. 2019 IEEE MTT-S International Microwave Symposium (IMS), 905–908.
Cappello, T., Jindal, G., Nunez-Yanez, J., & Morris, K. (2022). Power consumption and linearization performance of a bit-and frequency-scalable AM/AM AM/PM pre-distortion on FPGA. 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC), 1–3.
Cappello, T., Ozan, S., McDonald, L., Tucker, A., Krier, P., Williams, T., & Morris, K. (2023). A Low Loss, 6 GHz Large-Signal Bandwidth Analog Pre-Distortion Linearizer for K-Band High Power Amplifiers. 2023 53rd European Microwave Conference (EuMC), 368–371.
Cappello, T., Pednekar, P., Florian, C., Cripps, S., Popovic, Z., & Barton, T. W. (2019). Supply-and load-modulated balanced amplifier for efficient broadband 5G base stations. IEEE Transactions on Microwave Theory and Techniques, 67(7), 3122–3133.
Cappello, T., Pednekar, P. H., Florian, C., Popovic, Z., & Barton, T. W. (2018). Supply modulation of a broadband load modulated balanced amplifier. 2018 IEEE/MTT-S International Microwave Symposium-IMS, 304–307.
Cappello, T., Popovic, Z., Morris, K., & Cappello, A. (2021). Gaussian pulse characterization of rf power amplifiers. IEEE Microwave and Wireless Components Letters, 31(4), 417–420.
Cappello, T., Santarelli, A., & Florian, C. (2017). Dynamic RON characterization technique for the evaluation of thermal and off-state voltage stress of GaN switches. IEEE Transactions on Power Electronics, 33(4), 3386–3398.
Cappello, T., Verploegh, S., Florian, C., & Popovic, Z. (2019). Single-DC-input multi-level envelope tracking of a high-efficiency X-band power amplifier. 2019 IEEE MTT-S International Microwave Symposium (IMS), 464–467.
Duffy, M. R., Lasser, G., Cappello, T., & Popović, Z. (2020). Efficiency and linearity enhancement of a two-stage X-band PA through simultaneous gate and drain supply modulation. IET Microwaves, Antennas & Propagation, 14(12), 1347–1354.
Duffy, M. R., Lasser, G., Cappello, T., & Popović, Z. (2019). Dual gate and drain supply modulation of an x-band PA. 2019 IEEE MTT-S International Microwave Symposium (IMS), 979–982.
Fishler, D., Cappello, T., Hallberg, W., Barton, T. W., & Popovic, Z. (2018). Supply modulation of a linear Doherty power amplifier. 2018 48th European Microwave Conference (EuMC), 519–522.
Florian, C., Cappello, T., Niessen, D., Paganelli, R. P., Schafer, S., & Popović, Z. (2016). Efficient Programmable Pulse Shaping for X -Band GaN MMIC Radar Power Amplifiers. IEEE Transactions on Microwave Theory and Techniques, 65(3), 881–891.
Florian, C., Cappello, T., Paganelli, R. P., Niessen, D., & Filicori, F. (2015). Envelope tracking of an RF high power amplifier with an 8-level digitally controlled GaN-on-Si supply modulator. IEEE Transactions on Microwave Theory and Techniques, 63(8), 2589–2602.
Florian, C., Cappello, T., Santarelli, A., Niessen, D., Filicori, F., & Popović, Z. (2017). A prepulsing technique for the characterization of GaN power amplifiers with dynamic supply under controlled thermal and trapping states. IEEE Transactions on Microwave Theory and Techniques, 65(12), 5046–5062.
Florian, C., Niessen, D., Cappello, T., Santarelli, A., Filicori, F., & Popovic, Z. (2016). Pre-pulsing characterization of GaN PAs with dynamic supply. 2016 IEEE MTT-S International Microwave Symposium (IMS), 1–4.
Gibiino, G. P., Cappello, T., Niessen, D., Schreurs, D. M.-P., Santarelli, A., & Filicori, F. (2015). An empirical behavioral model for RF PAs including self-heating. 2015 Integrated Nonlinear Microwave and Millimetre-Wave Circuits Workshop (INMMiC), 1–3.
Gibiino, G. P., Florian, C., Santarelli, A., Cappello, T., & Popović, Z. (2018). Isotrap pulsed IV characterization of GaN HEMTs for PA design. IEEE Microwave and Wireless Components Letters, 28(8), 672–674.
Green, R., Cappello, T. A., Hilton, G., & Beach, M. (n.d.). ANTENNA MUTUAL COUPLING REDUCTION WITH ANALOGUE COMPENSATION NETWORK.
Green, R., Cappello, T. A., Hilton, G., & Beach, M. (2022). Antenna mutual-coupling mitigation with analogue compensation network. 2021 51st European Microwave Conference (EuMC), 1–4.
Jindal, G., Pomeroy, J. W., Watkins, G. T., Morris, K., Kuball, M., & Cappello, T. (2022). High-speed electro-thermal measurements in RF power amplifiers using thermo-reflectance. 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC), 1–3.
Jindal, G., Watkins, G. T., Morris, K., & Cappello, T. (2021). An rf power amplifier behavioural model with low-complexity temperature feedback for transmitter arrays. 2021 IEEE MTT-S International Microwave Symposium (IMS), 442–445.
Jindal, G., Watkins, G. T., Morris, K., & Cappello, T. (2022a). Gate Diode Current Sensing for Device Temperature Estimation in GaN RF Power Amplifiers. 2022 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR), 69–71.
Jindal, G., Watkins, G. T., Morris, K., & Cappello, T. A. (2022b). Digital Predistortion of RF Power Amplifiers Robust to a Wide Temperature Range and Varying Peak-to-Average Ratio Signals. IEEE Transactions on Microwave Theory and Techniques, 70(7), 3675–3687.
Litchfield, M., & Cappello, T. (2019). The various angles of outphasing PAs: Competitiveness of outphasing in efficient linear PA applications. IEEE Microwave Magazine, 20(4), 135–145.
Litchfield, M., Cappello, T., Florian, C., & Popovic, Z. (2016). X-band GaN multi-level chireix outphasing PA with a discrete supply modulator MMIC. 2016 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS), 1–4.
Ma, J., Jindal, G., Nair, M., Cappello, T. A., Watkins, G. T., Morris, K., & Beach, M. (2022). Highly Efficient 3-Bit Digital Power Amplifier for OFDM Waveform Amplification. IEEE Transactions on Microwave Theory and Techniques, 71(1), 35–47.
Ma, J., Watkins, G., Beach, M., & Cappello, T. (2024). A Sub-Nanosecond Gate Bias-Switching Circuit for GaN RF Power Amplifiers. IEEE Microwave and Wireless Technology Letters.
Martin, D. N., Cappello, T., Litchfield, M., & Barton, T. W. (2018). An X-band RF-input outphasing power amplifier. 2018 IEEE/MTT-S International Microwave Symposium-IMS, 308–311.
Marzall, L., Verploegh, S., Cappello, T., Roberg, M., & Popović, Z. (2021). Active MMIC circulator performance in a phased-array-like environment. 2020 50th European Microwave Conference (EuMC), 1186–1189.
Nair, M., Cappello, T. A., Dang, S., & Beach, M. A. (2022). Rigorous analysis of data orthogonalization for self-organizing maps in machine learning cyber intrusion detection for LoRa sensors. IEEE Transactions on Microwave Theory and Techniques, 71(1), 389–408.
Nair, M., Cappello, T., Dang, S., Kalokidou, V., & Beach, M. A. (2022). RF fingerprinting of LoRa transmitters using machine learning with self-organizing maps for cyber intrusion detection. 2022 IEEE/MTT-S International Microwave Symposium-IMS 2022, 491–494.
Nair, M., Dang, S., & Beach, M. A. (2023). IoT Device Authentication Using Self-Organizing Feature Map Data Sets. IEEE Communications Magazine.
Ozan, S., Nair, M., Beach, M. A., & Cappello, T. (2022). Modular design and characterization of a reconfigurable sequential power amplifier. 2022 IEEE 22nd Annual Wireless and Microwave Technology Conference (WAMICON), 1–4.
Ozan, S., Nair, M., Cappello, T., & Beach, M. A. (2020). Low-noise amplifier with wideband feedforward linearisation for mid-band 5G receivers. 2020 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), 125–128.
Ozan, S., Pitt, A., Nair, M., Beach, M. A., & Cappello, T. (2022). A 47% Fractional Bandwidth Sequential Power Amplifier with High Back-off Efficiency. 2022 4th IEEE Middle East and North Africa COMMunications Conference (MENACOMM), 37–42.
Pitt, A., Cappello, T., & Morris, K. (2022). Combining class j and inverse class f continuous modes for a highly efficient broadband power amplifier. 2022 52nd European Microwave Conference (EuMC), 508–511.
Pitt, A., Jindal, G., Morris, K., & Cappello, T. (2023). A Broadband Asymmetrical Doherty Power Amplifier With Optimized Continuous Mode Harmonic Impedances. IEEE Journal of Microwaves.
Rahimizadeh, S., Cappello, T., & Popović, Z. (2019). An Efficient Linear Power Amplifier with 2 nd Harmonic Injection. 2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR), 1–4.
Zai, A., Florian, C., Cappello, T., & Popovic, Z. (2016). Efficient power amplifiers for amplitude-tapered pulses with improved spectral confinement. 2016 IEEE MTT-S International Microwave Symposium (IMS), 1–4.
Zurek, P., Cappello, T., & Popovic, Z. (2020). Broadband diplexed power amplifier. IEEE Microwave and Wireless Components Letters, 30(11), 1073–1076.
Zurek, P., Cappello, T., & Popović, Z. (2019). A concurrent 2.2/3.9-GHz dual-band GaN power amplifier. 2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR), 1–4.
